4-t-Amylcyclohexanone
- CAS number
- 16587-71-6
- IFRA Standard status
- Concentration restricted
The information here describes the ingredient in general. Its possible sources may vary and do not necessarily show the origin or form used in a particular YUMA product. For product-specific information, check the relevant product page.
Description
Additional information
Did you know natural orris extract is so rare that it often costs more than gold? The ratio of one ton of iris roots to just 2.3 kilograms of final product, combined with a five-year curing process, makes it one of the world's most precious fragrance ingredients.
Orris has been used in perfumery since antiquity and was particularly popular in Renaissance royal courts. Catherine de' Medici used it as both a perfume and a poison, while Queen Elizabeth I favored it for her perfumed gloves.
Synthesizing 4-t-Amylcyclohexanone saves approximately 200,000 iris roots for every kilogram produced in the laboratory. This represents a significant step forward in sustainable perfumery, helping preserve natural plant populations.
CAS number
Other names
Linked YUMA products
IFRA Standard status
The IFRA Standards form an industry self-regulatory system. They may prohibit or restrict the use of particular fragrance ingredients, or set specifications, according to end use. The status below reflects the IFRA data recorded for this ingredient. It is not a product certification and does not replace applicable law or assessment of the finished product.
IFRA restrictions by category
IFRA categories group end uses by the type and level of exposure. A restriction or maximum concentration applies only to the stated category and does not automatically apply to another use. Check the related IFRA document for the applicable Standard version and its full conditions.
- 1. Lip products and children's toysMax concentration0.027%
- 2. Deodorants and antiperspirantsMax concentration0.008%
- 3. Face cosmetics and masksMax concentration0.16%
Regulatory information
The safety of 4-t-Amylcyclohexanone has been evaluated by the Research Institute for Fragrance Materials (RIFM), with a peer-reviewed safety assessment published. It was found to have the potential for skin sensitization in a small percentage of individuals. This means that in a limited number of people, repeated contact may cause a temporary reaction, including redness, rash, or itching.
RIFM has established a maximum acceptable concentration for this ingredient, and the International Fragrance Association (IFRA) has issued a safe use standard for 4-t-Amylcyclohexanone in home and personal care products. Most people will not be affected. Everyone's skin is different, so consult a healthcare professional if you have any questions.